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defon
3 years ago
11

40% of what distance is 6.4 miles

Mathematics
2 answers:
KengaRu [80]3 years ago
6 0

Answer:

Step-by-step explanation:

The % equation is p=%w

6.4 is the part

40 is the percent

the whole is x

6.4=.4x

Isolate x to get x=16

sorry if im wrong i havent done this since last month

Gelneren [198K]3 years ago
5 0

Answer:

16 miles

Step-by-step explanation:

<u>Step 1:  Make an expression</u>

40% of what distance is 6.4 miles

x * (0.4) = 6.4

0.4x = 6.4

<u>Step 2:  Divide both sides by 0.4</u>

0.4x / 0.4 = 6.4 / 0.4

x = 16

Answer:  16 miles

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ohaa [14]

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1. Notice that dividing both sides of 2y=10x-2 by 2 returns y=5x-1, same as the first equation. So the system of equations reduces to one equation, which can have an infinite number of solutions. (This is because for any choice of x or y, you can always find a corresponding value for the other variable.)

2. See attached image. 3x-y=2 is given by the purple line.

For 3-6, you have several options. The two simplest methods of solving them are by substitution or elimination.

3. Like with (1), notice that dividing both sides of the first equation by 2 gives x+3y=9, so there will be an infinite number of solutions.

4. (by substitution) Since y=-7x+3, we can replace y in the second equation:

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5 0
3 years ago
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Answer:

C

Step-by-step explanation:

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